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August 2021

16, Aug, 2021

Achievements in Academia

New ROS book published with Springer has chapter dedicated to CISTER's Cooperative Driving Framework (CopaDrive)

5, Aug, 2021

Achievements in Academia

CISTER uses AI technique in a new way to enable faster data collection using UAVs in large-area sensor networks

The Journal Paper entitled "LSTM-characterized Deep Reinforcement Learning for Continuous Flight Control and Resource Allocation in UAV-assisted Sensor Network", authored by Kai Li, Wei Ni, Falko Dressler is published in IEEE Internet of Things Journal.

Unmanned aerial vehicles (UAVs) can be employed to collect sensory data in remote wireless sensor networks (WSN). This is useful in many real-life situations like agriculture monitoring, forest fire prevention and control, smart traffic management, and other similar situations where there is the need to gather information over very large areas but keeping costs and resource usage to the minimum while guaranteeing an adequate quality of service.

Due to UAV's maneuvering, scheduling a sensor device to transmit data can overflow data buffers of the unscheduled ground devices. Moreover, lossy airborne channels can result in packet reception errors at the scheduled sensor.

This paper proposes a new deep reinforcement learning based flight resource allocation framework (DeFRA) to minimize the overall data packet loss in a continuous action space. DeFRA is based on Deep Deterministic Policy Gradient (DDPG), optimally controls instantaneous headings and speeds of the UAV, and selects the ground device for data collection. Furthermore, a state characterization layer, leveraging long short-term memory (LSTM), is developed to predict network dynamics, resulting from time-varying airborne channels and energy arrivals at the ground devices.

To validate the effectiveness of DeFRA, experimental data collected from a real-world UAV testbed and energy harvesting WSN are utilized to train the actions of the UAV. Numerical results demonstrate that the proposed DeFRA achieves a fast convergence while reducing the packet loss by over 15%, as compared to existing deep reinforcement learning solutions.

June 2021

29, Jun, 2021

Fundamental Research Activities

Scholarships for Critical Computing Systems Engineering MSc Students

The CISTER Research Centre, located in Porto, Portugal, an international reference in the area of real-time and embedded computing systems, is opening 8-10 MSc-Student positions for candidates already enrolled or that will enroll in the 2021/2022 edition of the MSc Program on Critical Computing Systems Engineering at ISEP, Porto, Portugal.

Successful candidates will perform research activities within ongoing CISTER projects, in parallel with the specific MSc studies. Research grants require exclusivity and will be funded by ISEP, Vortex CoLab or one of the companies collaborating with the MSc program. It is therefore a great opportunity for the candidates to get introduced to what scientific research is, and to interact with professionals from big players (companies and research institutions) also participating in those projects.

Deadline is 9th July 2021, to apply and find out more information about these scholarships, please visit https://www.cister-labs.pt/mscccse/scolarship

11, Jun, 2021

Fundamental Research Activities

Best Work-In-Progress Paper Award at WFCS 2021

April 2021

9, Apr, 2021

Achievements in Academia

PhD thesis developed at CISTER: Another step towards the applicability of multi-core platform to hard real-time systems

February 2021

15, Feb, 2021

Achievements in Academia

Paper published in IEEE Sensors Journal

8, Feb, 2021

Achievements in Academia

Journal Paper "Cloud versus Edge Deployment Strategies of Real-Time Face Recognition Inference" published

January 2021

26, Jan, 2021

Achievements in Academia

New Book on Unmanned Aerial Systems: Theoretical Foundation and Applications published with Elsevier Academic Press Publisher

The book titled "Unmanned Aerial Systems: Theoretical Foundation and Applications" edited by CISTER Researcher Anis Koubâa, and Ahmad Tahar Azar presents some of the latest innovative approaches to drones from the point-of-view of dynamic modeling, system analysis, optimization, control, communications, 3D-mapping, search and rescue, surveillance, farmland and construction monitoring, and more. With the emergence of low-cost UAS, a vast array of research works in academia and products in the industrial sectors have evolved. The book covers the safe operation of UAS, including, but not limited to, fundamental design, mission and path planning, control theory, computer vision, artificial intelligence, applications requirements, and more.

This book provides a unique reference of the state-of-the-art research and development of unmanned aerial systems, making it an essential resource for researchers, instructors and practitioners.

 

15, Jan, 2021

Fundamental Research Activities

CISTER builds Artificial Intelligence of things in critical real-time systems with in new InSecTT project

The Project INSECTT (Intelligent Secure Trustable Things) addresses the convergence of trustable and explainable artificial intelligence (AI) algorithms for the IoT (Internet of Things). INSECTT looks at the future of the technology of Artificial Intelligence of things (AIoT), particularly at the edge of the network, addressing issues of security, latency, privacy and safety. INSECTT consists of 52 EU and Turkish partners in 21 use cases of a diverse set of industrial domains such as: transportation, autonomous vehicles, aeronautics, healthcare, railway and building.

CISTER/ISEP is one of the core partners of this project, with contributions in different building blocks spanning dependable wireless solutions, trustworthiness and explainable AI methodologies, and real time critical systems components. CISTER/ISEP is leader of the use case of Wireless avionics intra-communications (WAICs), leader of the reference architecture of the project, core member of the technical board of the project, and contributor in the wireless platoon vehicle, and wireless security test use cases.
More information can be found in the InSecTT website, its Twitter and YouTube social accounts.
InSecTT has received funding from the ECSEL Joint Undertaking (JU) under grant agreement No 876038.

15, Jan, 2021

Fundamental Research Activities

New VALU3S project tackles Verification & Validation on automated systems

Verification & Validation (V&V) remains as a major challenge in the development of safety-critical systems. Current V&V technology is known to be time consuming, costly, and mostly focused on the functionality aspects of systems. However, with the raising complexity associated with systems becoming more automated, open, and connected, other key properties such as security and privacy must be taken into account in the V&V methods.
The goal of VALU3S project is to design, implement, and evaluate state-of-the-art methods and tools that reduce the time and cost needed to perform V&V on automated systems with respect to Safety and Security requirements. For that, the project will design and implement a multi-dimensional, multi-layered framework where test cases and scenarios arising from 13 use cases, from 6 different application domains, are evaluated by state-of-the-art methods and tools developed/improved in the project, while adhering to relevant standards.

CISTER/ISEP is a key partner in VALU3S, bringing know-how and experience in formal verification and artificial intelligence into several technical tasks and use cases, and is also the responsible for the leadership of the Dissemination, Communication and Exploitation work package, and leader of the General Dissemination task, both of which are key components of the project for ensuring that the results of the project reach the more relevant stakeholders (including industry working in automated systems, policy makers, and the general public).
More information in the VALU3S website, its Twitter, LinkedIn, and YouTube social accounts. If you want to be updated about progress in the project, please subscribe to the project’s newsletter.
This project has received funding from the ECSEL Joint Undertaking (JU) under grant agreement No 876852.

6, Jan, 2021

Achievements in Academia

J. Harrison Kurunathan successfully defended his PhD thesis at FEUP

5, Jan, 2021

Achievements in Academia

Journal Paper "Continuous Maneuver Control and Data Capture Scheduling of Autonomous Drone in Wireless Sensor Networks" published

November 2020

18, Nov, 2020

Achievements in Academia

Journal Paper "Multivariate time series clustering and forecasting for building energy analysis: Application to weather data quality" published

October 2020

28, Oct, 2020

Fundamental Research Activities

CISTER project enhances reliability and security in UAV data networks for IoT devices